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<head><meta charset="utf-8"><title>The Weekly Edition of the Edition Updates, Edition #​4 · edition 2021 · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/index.html">edition 2021</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/The.20Weekly.20Edition.20of.20the.20Edition.20Updates.2C.20Edition.20.23.E2.80.8B4.html">The Weekly Edition of the Edition Updates, Edition #​4</a></h3>

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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/The%20Weekly%20Edition%20of%20the%20Edition%20Updates%2C%20Edition%20%23%E2%80%8B4/near/234147683" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Mara <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/The.20Weekly.20Edition.20of.20the.20Edition.20Updates.2C.20Edition.20.23.E2.80.8B4.html#234147683">(Apr 12 2021 at 12:23)</a>:</h4>
<p>Time for status updates! <span aria-label="tada" class="emoji emoji-1f389" role="img" title="tada">:tada:</span></p>
<ul>
<li>std/core panic: Implemented and available already. Automated migration doesn't work yet because of the rustfix multi-span issue. (See below.)</li>
<li>Range types: This discussion hasn't converged, so probably not going to make it for edition 2021. cc <span class="user-mention" data-user-id="243558">@Steven Fackler</span></li>
<li><code>k#</code> keywords: This got extended/generalized to reserving <code>anything#</code> and <code>anything".."</code>. But now it's unclear what 'reserved' means. Do we tokenize but not parse, or also refuse to tokenize? This makes a difference for (proc) macros. And for <code>anything".."</code> there's some ongoing discussion about things like <code>fr"\"</code> (is that a raw literal or not?). cc <span class="user-mention" data-user-id="125270">@scottmcm</span></li>
<li>Prelude changes: Crater report is available, but we still need a migration lint plan. <span class="user-mention" data-user-id="226095">@Dirkjan Ochtman</span> any updates?</li>
<li>Or patterns: Migration lint implemented. Discussion on the name for <code>:pat_atom</code> still ongoing <a href="https://github.com/rust-lang/rust/pull/83386">here</a>.</li>
<li>Disjoint captures: <span class="user-mention" data-user-id="281950">@Aman Arora</span> What's the status?</li>
<li>IntoIter for <code>[T; N]</code> - Doesn't seem feasible as an edition change. Discussion about landing this on all editions ongoing <a href="https://github.com/rust-lang/rust/pull/65819">here</a>.</li>
<li>rustc_args_required_const: This has been discussed in the language meeting a while ago, but I don't think there's any updates in the last week or two. <span class="user-mention" data-user-id="143274">@Amanieu</span> ?</li>
<li>Lints: <span class="user-mention" data-user-id="224872">@rylev</span>?</li>
<li>try_trait_v2: RFC entered FCP. But will probably not do anything edition-specific.</li>
<li>rustfix multi-span issue: Nobody is working on this yet. See <a href="#narrow/stream/268952-edition-2021/topic/rustfix.20multi-span">this topic</a>.</li>
</ul>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/The%20Weekly%20Edition%20of%20the%20Edition%20Updates%2C%20Edition%20%23%E2%80%8B4/near/234150708" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Amanieu <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/The.20Weekly.20Edition.20of.20the.20Edition.20Updates.2C.20Edition.20.23.E2.80.8B4.html#234150708">(Apr 12 2021 at 12:45)</a>:</h4>
<p>rustc_args_required_const is still stuck in the crater queue.</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/The%20Weekly%20Edition%20of%20the%20Edition%20Updates%2C%20Edition%20%23%E2%80%8B4/near/234151580" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Amanieu <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/The.20Weekly.20Edition.20of.20the.20Edition.20Updates.2C.20Edition.20.23.E2.80.8B4.html#234151580">(Apr 12 2021 at 12:51)</a>:</h4>
<p>Is it possible to update the PR without losing its slot in the crater queue? It's been in the queue for almost a month now.</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/The%20Weekly%20Edition%20of%20the%20Edition%20Updates%2C%20Edition%20%23%E2%80%8B4/near/234151614" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/The.20Weekly.20Edition.20of.20the.20Edition.20Updates.2C.20Edition.20.23.E2.80.8B4.html#234151614">(Apr 12 2021 at 12:51)</a>:</h4>
<p>yeah, crater queue slot and pr updates are independent</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/The%20Weekly%20Edition%20of%20the%20Edition%20Updates%2C%20Edition%20%23%E2%80%8B4/near/234151717" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Amanieu <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/The.20Weekly.20Edition.20of.20the.20Edition.20Updates.2C.20Edition.20.23.E2.80.8B4.html#234151717">(Apr 12 2021 at 12:52)</a>:</h4>
<p>I mean to update the try build that crater will run.</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/The%20Weekly%20Edition%20of%20the%20Edition%20Updates%2C%20Edition%20%23%E2%80%8B4/near/234151805" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/The.20Weekly.20Edition.20of.20the.20Edition.20Updates.2C.20Edition.20.23.E2.80.8B4.html#234151805">(Apr 12 2021 at 12:52)</a>:</h4>
<p>Oh, hm. I think you can edit the existing job to change the start/end without any problems, yes</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/The%20Weekly%20Edition%20of%20the%20Edition%20Updates%2C%20Edition%20%23%E2%80%8B4/near/234178258" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/The.20Weekly.20Edition.20of.20the.20Edition.20Updates.2C.20Edition.20.23.E2.80.8B4.html#234178258">(Apr 12 2021 at 15:19)</a>:</h4>
<p><span class="user-mention" data-user-id="226095">@Dirkjan Ochtman</span> we're just going over the list and I'm checking in on the prelude; would it be better if we tried to find someone else to follow up on a migration plan here?</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/The%20Weekly%20Edition%20of%20the%20Edition%20Updates%2C%20Edition%20%23%E2%80%8B4/near/234178470" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Dirkjan Ochtman <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/The.20Weekly.20Edition.20of.20the.20Edition.20Updates.2C.20Edition.20.23.E2.80.8B4.html#234178470">(Apr 12 2021 at 15:20)</a>:</h4>
<p>I think I can spend some time on it this week</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/The%20Weekly%20Edition%20of%20the%20Edition%20Updates%2C%20Edition%20%23%E2%80%8B4/near/234178507" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Dirkjan Ochtman <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/The.20Weekly.20Edition.20of.20the.20Edition.20Updates.2C.20Edition.20.23.E2.80.8B4.html#234178507">(Apr 12 2021 at 15:20)</a>:</h4>
<p>still a little unclear what the required level of specificity is</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/The%20Weekly%20Edition%20of%20the%20Edition%20Updates%2C%20Edition%20%23%E2%80%8B4/near/234189084" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> scottmcm <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/The.20Weekly.20Edition.20of.20the.20Edition.20Updates.2C.20Edition.20.23.E2.80.8B4.html#234189084">(Apr 12 2021 at 16:27)</a>:</h4>
<p><a href="https://github.com/rust-lang/rfcs/pull/3101">https://github.com/rust-lang/rfcs/pull/3101</a> (the lexical reservation without defining semantics for any of it) is in p-FCP.  cc <span class="user-mention" data-user-id="256342">@bstrie</span></p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/The%20Weekly%20Edition%20of%20the%20Edition%20Updates%2C%20Edition%20%23%E2%80%8B4/near/234240140" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Aman Arora <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/The.20Weekly.20Edition.20of.20the.20Edition.20Updates.2C.20Edition.20.23.E2.80.8B4.html#234240140">(Apr 12 2021 at 22:28)</a>:</h4>
<p>2229: Biggest update from our end is that migrations now work with rust fix</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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